Veteran forward Curtis Glencross joined the Colorado Avalanche on a professional tryout contract, the Avalanche tweeted Monday.

Glencross was released from his PTO by the Toronto Maple Leafs on Sunday. He has 134 goals and 275 points in 507 NHL games with the Columbus Blue Jackets, Edmonton Oilers, Calgary Flames and Washington Capitals.

Visnovsky, 39, spent the previous three seasons with the New York Islanders. He had five goals and 20 points in 53 regular-season games last season, and two assists in four Stanley Cup Playoff games. He's played 883 NHL games in 14 seasons with the Los Angeles Kings, Edmonton Oilers, Anaheim Ducks and the Islanders.

Kopecky, 33, has 68 goals and 106 assists in 578 NHL games. He played two seasons with the Blackhawks and won the Stanley Cup in 2010. After setting career highs with 15 goals and 27 assists in 2010-11, Kopecky was traded to the Florida Panthers, where he spent the past four seasons.

The San Jose Sharks reassigned 10 players Monday, including sending forward Timo Meier, the ninth pick in the 2015 NHL Draft, to the Halifax Mooseheads of the Quebec Major Junior Hockey League.

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Los Angeles Kings defensemen Jake Muzzin and Matt Greene sustained upper-body injuries during a preseason game against the Colorado Avalanche on Sunday.

Muzzin was hit hard into the boards by Avalanche forward Blake Comeau eight minutes into the game. He played four additional shifts in the period but did not return for the second.

Greene took his final shift late in the second period. He remained on the bench for the third.

Colorado Avalanche forward Nathan MacKinnon is promising to be more aggressive entering his third season in the NHL.

"I feel faster, more powerful. I can say all that stuff, but I have to bring it to the games. But I do feel good out there," MacKinnon, 20, told the Denver Post.

"There's times to pull up and times to drive, and obviously I didn't drive enough. I know that. But you have to make a decision pretty quick out there and sometimes you're not going to make the best decision. I can drive more, for sure, and I need to get deeper when I do pull up -- it needs to be closer to the goal line. I have to at least try to get to the net, and if I can't, I'll pull up. But for sure, this year I'm going to try to be more aggressive."

The Boston Bruins assigned goalies Zane McIntyre and Malcolm Subban to their American Hockey League affiliate in Providence on Sunday, leaving Jeremy Smith and veteran Jonas Gustavsson, in camp on a professional tryout, to compete for the backup role behind Tuukka Rask.

Forward Jake DeBrusk, the 14th pick in the 2015 NHL Draft, was one of three players returned to their respective junior teams.

The Toronto Maple Leafs released veteran forwards Curtis Glencross and Devin Setoguchi from their professional tryout contracts, and reassigned forward Mitchell Marner to London of the Ontario Hockey League, the Maple Leafs announced Sunday.

Glencross has 134 goals and 275 points in 507 NHL games with the Columbus Blue Jackets, Edmonton Oilers, Calgary Flames and Washington Capitals. Setoguchi has 127 goals and 249 points in 471 NHL games with the San Jose Sharks, Minnesota Wild, Winnipeg Jets and Flames. He scored a career-high 31 goals with San Jose in 2008-09.

The Tampa Bay Lightning claimed goaltender Kevin Poulin off waivers from the New York Islanders and released goalie Ray Emery from his professional tryout, the Lightning announced Sunday.

Poulin had an .899 save percentage and a 3.07 goals-against average in 50 games with the Islanders. He went 16-21-7 with a 2.87 GAA and .912 save percentage in 45 games last season for Bridgeport of the American Hockey League. He will compete with Kristers Gudlevskis to back up Ben Bishop in place of Andrei Vasilevskiy, who is expected to be sidelined until at least November after having vascular surgery on Sept. 3.

The Nashville Predators assigned forward Kevin Fiala and 21 others to their American Hockey League affiliate Saturday.

Fiala, the 11th pick in the 2014 NHL Draft, had two assists and seven shots on goal in four preseason games while averaging 14:23 of ice time. He had 11 goals and 20 points in 33 games for the Admirals last season, and a goal and two assists in eight games for Switzerland at the 2014 IIHF World Junior Championship.

Defenseman Barret Jackman participated in a Nashville Predators scrimmage Saturday and is hopeful to recover from an upper-body injury in time to play the final two preseason games.

"We're just looking for him to get back on the ice," Predators coach Peter Laviolette told The Tennessean. "It's unfortunate what happened, and now that he's feeling better, on the ice for a couple days, we were able to get him mixed into a scrimmage.

"Some of the exhibition games have gone by, obviously he would have played in some of those. Especially being new here, learning the systems, it's good to get him out here and just get him back."